27. I think the dynamic would change

Currently, the President, and Democratic senators and reps from purple states can get away with murder: "sure, I voted for that bill to put toxic waste in school lunches, but if you don't vote for me you'll get the REPUBLICAN!!! BOOGA-BOOGA!!!"

In my state, that can't happen. We normally have more Greens contesting state offices than Republicans. And the Republicans here suck, but they're not in the same league as purple- or red-state Republicans. So triangulation is much more difficult: put toxic waste in school lunches and you'e out.